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Ducking and dodging thunderstorms in Virginia

I’m a PhD student at VIMS, co-advised by Drs. Emmett Duffy and Rob Latour. While my contributions to the ZEN project thus far have been minimal as I’m in the midst of writing up my dissertation research, I did get drafted into action last week when ZEN was in need of a boat driver and an extra set of hands… I qualified. My research focuses on trophic interactions of fishes in seagrass beds—not all that different from the focus of the ZEN projects this summer. What is different is how we think about these systems. I keep reminding the folks in Emmett’s lab that their definition of “predators” is what those of us in the fish world call “prey.” Or what fishermen would call “bait.” It’s all a matter of scale.

Surrounded by experimental gear, Kathryn pilots the Virginia ZEN team out to the field

And so I found myself in the field with ZEN, and with a few firsts after 4 years of doing field work in Chesapeake Bay. Last week we had one of those early morning tides and correspondingly early start times that made me think staying in and writing statistical code was a good idea. The first morning the alarm went off at 4:30am. My dogs definitely did not want to get up, but they saw the swimsuit and towel as a good sign—they love the beach. Little did they know that today was not their day for a sunrise swim. I made sure I had enough adequate coffee to function, and was out the door. Standing on the boat with the sun rising, I remembered why early field work is so nice: calm water, fresh air, and, most importantly, it’s not so hot! We got to the field site, Pamela got us all organized (which admittedly felt a little like herding cats since several of us were new to the scene), and we set to work installing the cages for an experiment excluding ‘predators’ from patches of Zostera to examine their effects on the seagrass community. I had toyed with conducting a predator exclusion experiment for my own work, but in the end it fell to the wayside—so it was nice to see the set-up and be involved with the execution. We completed the first stage of the set-up before the tide rolled back in and the weather caught up with us.

William and Mary undergraduate Katelyn Jenkins keeps an eye on the approaching storm

One of the occupational hazards of field work in southeastern Virginia in the summertime is the random thunderstorm. As grateful as I am to our friends at the National Weather Service for providing quality marine forecasts, even they occasionally get caught with their umbrellas down and we all get soaked. Tuesday was one of those days. We decided to go in the field on the forecast of “morning showers, afternoon thunderstorms,” and again, we had an early start. We motored out to the site, anchored up, had one person in the drink, and then thunder rumbled in the distance. Once, twice and we pulled anchor and ran to our thunderstorm hideout, a picturesque marina at Back Creek on the York River. We tied up just as the skies opened and the thunder boomed overhead. After four years and almost constant, sometimes daily fieldwork in this area, I had yet to duck back into the thunderstorm hideout! Thankfully, there was a nice awning to keep us mostly dry and Pamela had brought some field snacks to keep us happy as we waited for the storm to pass.

Storms churn up the water, which can make setting up experiments a challenge

After an hour, we were back onsite and installing the second part of the experiment: putting the eelgrass into the cages and populating the cages with grazers. The wind was building and without sun, the water actually was kind of…dare I say…cold! I hopped onto the boat to have a look at the radar (the beauty of smartphone technology!) and things looked clear, so we kept pushing forward, despite the ominous looking clouds over the northeast part of the nearby Mobjack Bay. Sure enough, the next time I checked the radar, 30 minutes later, multiple storms had popped up and things were looking ugly. We called it a wrap, but this time we had no sooner left the site when the skies opened up and pelted us with big, juicy, rain drops. If you’ve never been on an open skiff in pouring rain, you have missed out on the field spa treatment of “dermabrasion”—it feels like you’re being sandblasted! Ouch. While I prefer sunglasses in such conditions to protect my eyes, Serena decided a diving mask was the ticket for protecting her face— she definitely won the field fashion contest! Thankfully, it was just rain with no thunder and lightning, so we pushed on and docked at VIMS looking like a group of drowned sea rats.

By the end of the week we had finished installing the experiment, shored up any caddywampus cages, scrubbed the outside of the cages clean (anyone who owns a boat in these parts can tell you that things in the water get fouled very quickly), and generally made sure the experiment was set. We’ll hope for fewer storms as the experiment continues. While the sun can be hot around here in the summer, it’s much nicer when the wind lays low and the thunderstorms hold off until we’re safe in the lab!

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